COMMUNICATION SYSTEM, A COMMUNICATION TERMINAL AND A METHOD OF DETERMINING A LOCATION ESTIMATE THEREFOR
First Claim
1. A communication system comprising:
- a first communication terminal comprising means for determining a location estimate in response to signals received from a plurality of satellites, means for forming an ad-hoc communication link to a second communication terminal, means for transmitting a request for satellite information data to the second communication terminal over the ad-hoc communication link, and means for receiving the satellite information data from the second communication terminal over the ad-hoc communication link; and
the second communication terminal comprising;
means for generating satellite information data for a satellite location estimation based on the plurality of satellites, means for forming the ad-hoc communication link with the first mobile communication terminal, means for receiving the request for satellite information data from the first communication terminal over the ad-hoc communication link, and means for transmitting the satellite information data to the first communication terminal over the ad-hoc communication link; and
wherein the means for determining the location estimate is operable to determine the location estimate in response to the satellite information data.
1 Assignment
0 Petitions
Accused Products
Abstract
A communication system (100) comprises a plurality of location enabled communication terminals (101, 103). The communication terminals (101, 103) comprise a GPS location processor (111) which generates a location estimate in response to signals received from satellite information data and a plurality of satellites (105). The communication terminals (101, 103) also comprise a transceiver (117, 119, 121) which can form ad-hoc communication links with other communication terminals (101, 103). An ad-hoc controller 123 controls the generation and transmission of a request for satellite information data to another communication terminal (101, 103). The transceiver (117, 119, 121) receives satellite information data from the other communication terminal (101, 103) and the location estimate is determined in response thereto. The ad-hoc controller (123) is furthermore operable to detect a request for satellite information data from another communication terminal (101, 103) and to transmit satellite information data over the ad-hoc communication link in response. Hence, satellite information data may be dynamically and opportunistically shared between communication terminals (101, 103).
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Citations
10 Claims
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1. A communication system comprising:
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a first communication terminal comprising means for determining a location estimate in response to signals received from a plurality of satellites, means for forming an ad-hoc communication link to a second communication terminal, means for transmitting a request for satellite information data to the second communication terminal over the ad-hoc communication link, and means for receiving the satellite information data from the second communication terminal over the ad-hoc communication link; and
the second communication terminal comprising;
means for generating satellite information data for a satellite location estimation based on the plurality of satellites, means for forming the ad-hoc communication link with the first mobile communication terminal, means for receiving the request for satellite information data from the first communication terminal over the ad-hoc communication link, and means for transmitting the satellite information data to the first communication terminal over the ad-hoc communication link; and
wherein the means for determining the location estimate is operable to determine the location estimate in response to the satellite information data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification